Why does Rider show only a few processes on macOS?

Zhoujiazhiwork,

You can use a dropdown on the right side of the Attach to Process window to list all processes running on the system:

Kirill Filin 

I built an application with embedded Mono that runs C# code, but in Rider, the application is greyed out and I can't attach to it. How?

in below image, the Main is the application which I started in shell.

Zhoujiazhiwork could you attach a screenshot that demonstrates the state of the entire Attach to Process window when you are trying to attach to your process?

Kirill Filin 

Please let me know if you need additional screenshots or information.

Zhoujiazhiwork could you send us your Rider logs with some diagnostic information so we could look into this further?

Follow these steps to collect the logs:

• Open Help | Diagnostic tools | Choose Trace Scenarios
• Enable Debugger and ClrEnumerator trace scenarios
• Reproduce the issue
• Collect Rider logs via Help→Collect Logs and Diagnostic Data
• Send us your Rider logs via the Upload Service, and let us know the Upload ID by leaving a comment in this thread